How the wait between steps, the send window and weekends decide when each step goes.
Each step shows the wait after the previous one. Click it to change the number of days.
The day and time on a step card is when it goes relative to enrollment, in your timezone.
"Send on weekends" is off by default: steps that land on Saturday or Sunday move to Monday.
The daily send window is in Settings → Setup.
Emails are spread across these hours; nothing goes out before the start or after the end.
The daily limit caps how many emails leave in a day; the rest roll to tomorrow.